Deep-well pump.



Y To all 'whom it may concern:

CHARLESA. WAITZ, OF ROUSEVILLE, PENNSYLVANIA.

ilmnp-Wisin; PUMP.

Specification .of Letters Patent.

Patented Jan. 9, 15912.

Application led July 5, 1910. Serial No. 570,272.

Be it known that I, CHARLES A. WArrz, a citizen of the United States, residing at Rouseville, in the county. of Venango' and State of Pennsylvania, have invented certain new anduseful Improvements in Deep- Well Pumps, of which the following is a specification.

' bular cage sucker-rod may Y 'rectly-at the top of t The'construction of my deep-well pump is herein set forth with sulicient clearness to enable those skilled inthe use and con'- struction of deep well pumps, to make and use t-he same.

The object of my invention is to provide a deep well pump, and more especially a working-barrel and valve mechanism for pumping oil wells in which the dililculty of valves 'becoming stuck and. otherwise inoperative from sand settling around them, will be largely eliminated.

In the drawings: llligure l shows my improved worki-ng barrel complete with valves. Fig. 2 isan elevation, partly in central vertical section, of my improved piston valve. Fig.'3 `is a central vertical section through my improved check valve.

In constructing my improved pump I em ploy a barrel l of substantially the usual form: I place in the bottom thereof a checkvalve, commonly termed in the oil-fields a standing valve, which consists of a tuor body provided at its lower end with a plug 2 having the usual taperto tit the seat of an ordinar working barrel. acking cups 3, or any ot er suitable packing material may be employed to prevent leakage between the wall of the barrel and the valve cage. The drop of the valve consists of a'hemispherical head 4 and apendant stem 5. The'crown of the cage is provided Wit-hv a tapped hole into which the bescrewed to pull the valve from the barreland'remove samectrom the well for repairs.

My piston-valve, as :shown in- Fig. 2, is of a novel construction, especially as to the shape and location usually at the top, whereas, I bottom; the construction of t tion gf thepiston also differs commen use by havin 1place it at the e upper porfrom those in e piston, which preventfsilt from getting between the piston and the: wall of t tallic sectiondirectly at the top that is s ome- 4may be located i that the weight of the of the drop 7, which is apackin'g .cup 9 di' -oil above it, it is not so' e barrel, whereas vall other' pistons,.-'so far as I am aware-haves. me.

what smaller in diameter than the bore of the barrel, and this'permits silt to settle around said section, action of the fluid cannot remove saidsilt, it greatly hastens the wear of the piston and barrel. The top or upper surfaceof my piston slopes downwardly and inwardly so that all solid material and silt settlingupon the same is directed to the inner .chamber of the piston,'which chamber. has imperforate wallsthat prevent the lateral escape of said silt and from whence the action of the fluid will carry it out whenthe pump is in operation.

Another novel feature of my piston is the projection of the stem 8 below the bottom of the piston body, the object of which will be presently set forth.

The outside of the piston is provided with a plurality of packing cups 9, one of which the piston,

islocateddirectly at the top of as azt'oresaid to exclude all sand and silt and prevent its nding its way and lodging between the working surfaces. The other cups as shown, or in any other Way best adapted' to efficient service, The upper end of the valve is provided with a threaded nipple 10, to which the sucker-rod is attached to operate the piston.

VWhile some oil wells are pumped continuously, nearly all of .them are pumped intermittently, and when they are not .being pumped, if there is any sand or silt in' the Huid-as there nearly always is-it will settle to the bottom of contained in the' tubing,

and lodge upon and around the valves and t is often causes the valves to 4either stick, by settling around them, or to'leak b gettin between the drop and its seat, and t e actua? to be that the silt nearly always settles around the iston or Vits drop and causes them to stieg, and' gets beneath the checkvalve drop and causes it to leak and the reasons forl these conditions the piston' holds the drop so securely to its and inasmuch. as the the column of fluid.'

condition appears Ame probably are column-of oil above;

seat. that sand cannot` et beneath it and thus settles around it, w 'le with the check# valve, there being only a rop and its seat, and this causes small amount of rmly held to its ermitting the sand to get be the stem 8 enters the tap-hole inthe top of 'the check-valve and touches -each downward stroke height win a barrel provided with a gghec'k-valvel seat from the presence of silt about them, the

' at vits lower end, of a check-valve arrange piston is adjusted to a low position, until the head 4 of said check-valve conthe drop in said check-valve; a few strokes of the pumping mechanism will then cause the stem 8 to strike against the head 4 at of the piston and valves from any obstructhen rey-adjusted to the barrel and operate in said barrel; at the top thereof, a seat within 'said cage, a hemispherical drop w 'seating upon said seat, a pendant stem upon said drop, packing members between the uter wall 'of said cage and the saidbarrel; said piston consisting of a tubular body openat Athe top and having imf` perforate side walls, the upper edge of the this will free the tion, the piston is higher, original position in the the pump is readyfor operation.

When the valves are bumped, as above explained, the drop in the piston ,is caused to rise, and the fluid may ow downward. or regurgitate through it,land if there is any sand upon the seat of the standing valve, yor between said seat and the drop, the downward rush ofthe oil will quickly remove same and place the valve in good operativel condition. It will readily be understood that the force of the downward ow of a column of fluid several hundred feet in be considerable, and will quickly purpose set forth, packing members oarried by said body, tion of the chamber of said body and a valve-drop seating upon said seat, said drop having a pendant stem vprojecting below said piston, arranged to bum the drop of said check-valve, as and for the purpose set forth.

In testimony ture in presence (f whereof I aiiz my Asignatwo witnesses.

remove particles of sand from the valve v HARLES'A.. WITZ. seats. l `Witnesses: i

I claim: J D. TRAX,

In a deep well pump the combination with PEARL PRQPER.

to seat in said seat and apiston adapted to\ ith its spherical facev inner wall of,

walls of said body sloping inwardly for the sisting of a tubular cage having an opening a seat in the lower por- 

